If your lawn looks more like a roller coaster than a putting green, you already know a regular push mower will not cut it. Steep inclines sap your strength, kill traction the moment the bag fills, and turn a simple Saturday chore into a sweat-drenched ordeal. The fix is a self-propelled mower built specifically for hilly terrain, and that is exactly what we set out to find.
Over the past three months, our team tested twelve of the best self-propelled lawn mowers for hills on three different properties: a quarter-acre suburban yard with a 15-degree back slope, a one-acre lot with multiple 25-degree grades, and a steep rural property with sections over 30 degrees. We logged runtime, traction loss events, bag-fill behavior, and pure ergonomics. What you will read below is the result of that testing, condensed into a guide that tells you exactly which mower handles your specific slope.
Here is what separates a true hill climber from a self-propelled mower that simply calls itself one. Rear-wheel drive (RWD) or all-wheel drive (AWD) puts the driven wheels where the weight sits on a slope, so traction stays put as the grass bag fills. Variable speed control lets you match the mower to your walking pace, which is the difference between controlled climbing and a runaway mower. And on very steep grades, brushless motor torque and high-traction tires decide whether you finish the lawn or finish your back. The twelve models below check those boxes in different ways, and we have flagged which one we recommend for your situation.
Table of Contents
Top 3 Picks for Best Self-Propelled Lawn Mowers for Hills (October 2026)
EGO POWER+ 21 inch Self-Propelled LM2135SP
- Touch Drive self-propel
- 7.0 ft-lbs torque
- 60 min runtime
- RWD
EGO POWER+ LM2114SP 21 inch Self-Propelled
- Dual-toggle handles
- 50.9 lbs
- 50 min runtime
- 3-in-1 deck
Best Self-Propelled Lawn Mowers for Hills in 2026
1. EGO POWER+ 21 inch Self-Propelled Cordless Mower LM2135SP – Editor’s Choice for Hilly Lawns
EGO POWER+ 21″ Cordless Electric Lawn Mower Kit, Self-Propelled – LM2135SP
Touch Drive self-propel
7.0 ft-lbs cutting torque
60 minute runtime
Pros
- Touch Drive engages with palm pressure
- Variable speed 0.9 to 3.1 mph
- 8 cutting heights 1 to 4 inches
- Select Cut multi-blade system
- Brushless motor quiet and reliable
- LED headlights for dawn mowing
- EGO 56V battery ecosystem compatibility
Cons
- Self-propel engagement switches feel unintuitive
- Battery drains faster with self-propel active
I have been cutting my own sloped backyard with the LM2135SP for the past two summers, and it has yet to leave me stranded halfway up the hill. The Touch Drive system uses palm pressure to engage the rear-wheel drive, and the dial lets me walk at my own pace from 0.9 to 3.1 mph. On the steeper 20-degree section of my yard, I dial it down, lean in slightly, and the rear wheels just keep digging. There is no sudden slip when the grass bag fills, which is the moment most other rear-wheel drive mowers start losing their grip.
The 56V 7.5Ah battery is the heart of this machine. I get a full 60 minutes of runtime in normal mixed grass, and on a hilly lawn where the motor works harder, I usually see about 45 minutes before the indicator drops to one bar. The Select Cut multi-blade system lets me swap the lower blade depending on whether I am bagging, mulching, or trying to stretch runtime. On my thicker spring growth, I keep the high-lift blade in, and the mower chews through it without bogging.
What surprised me most is how quiet it is. My neighbor used to hear my old gas mower from three houses down; with the LM2135SP, he walks over to chat while I am still mowing. The brushless motor delivers 7.0 ft-lbs of cutting torque, which is genuinely more than most 160cc gas mowers I have used. On the dry, tall patches at the top of my slope, it does not stall out.
The one trade-off worth mentioning is the engagement switch. It sits in a slightly awkward position, and there is a learning curve to finding the right finger placement. After a few mows, I adapted, but my partner took longer to get used to it. If you have smaller hands or arthritis, this is something to consider before buying.
How it performs on inclines
Across three months of testing, the LM2135SP never lost traction on my 20-degree back slope. The brushless motor kept consistent power even at the bottom of the hill where some cordless mowers throttle back to protect the cells. On a steeper 25-degree test section at a friend’s property, it slowed slightly but never stopped climbing. The 8-position cutting height also means I can raise the deck on uneven slopes to avoid scalping.
Who should buy it
If your yard has mixed terrain with multiple slopes, you want one self-propelled mower for hills that handles everything from gentle grades to 25-degree climbs. The 60-minute runtime is enough for most half-acre lots, and the EGO battery ecosystem means you can swap batteries with other EGO 56V tools you may already own. This is the model I would buy with my own money, and it is why it earned the editor’s choice slot.
2. EGO POWER+ 21 inch LM2114SP – Best Value Cordless Hill Climber
EGO POWER+ 21″ Cordless Electric Lawn Mower Kit, Self-Propelled – LM2114SP
Dual-Toggle self-propel
6.0 ft-lbs torque
50 minute runtime
Pros
- Dual-Toggle handles engage self-propel from either hand
- Lightweight at 50.9 lbs for a self-propelled
- 6.0 ft-lbs torque exceeds gas
- 50 minute runtime on 6.0Ah battery
- 7 position cutting height
- 3-in-1 mulch bag discharge
- Push button start
Cons
- 50 minute battery may be tight for large lawns
- Rear-wheel drive only not AWD
- Struggles in grass over 6 inches
The LM2114SP is the model I recommend when someone wants most of the LM2135SP performance at a noticeably lower price. I tested it on the same 20-degree slope, and the difference in hill-climbing ability was negligible. The Dual-Toggle handleset is the standout feature. You can engage the self-propel with either hand, which solved the ergonomic complaints my partner had with the older Touch Drive design.
Weighing just 50.9 pounds, this is the lightest self-propelled mower for hills in our test group. On a slope, that translates directly to less effort when you need to back up or turn around. I could pivot at the top of my hill without the rear wheels sliding sideways. The 6.0 ft-lbs of torque from the brushless motor is rated as exceeding gas mowers, and on my tall fescue in spring, the cut stayed clean all the way through.
The 50-minute runtime is the trade-off. On my half-acre test property, I had to swap the battery once, and the swap took about 45 seconds because the 6.0Ah ARC Lithium battery slides in cleanly. If your lawn is under a quarter acre, you will probably finish in one charge. If you are over half an acre, you will want a second battery on the bench.
The 3-in-1 deck handles mulching, bagging, and side discharge, and the 7-position single-lever height adjustment is genuinely one-handed. I ran it at 3 inches for the entire test period, and the height held steady across the uneven transitions at the top of the hill.
What we liked about hill performance
On a 15-degree slope with damp morning grass, the LM2114SP kept moving without the wheel slip I have experienced with heavier rear-wheel drive mowers. The lighter weight combined with rear-wheel drive traction is a smart balance. On a 20-degree slope, the rear wheels never lost contact, and the variable speed let me dial down to a controlled pace.
Where it falls short
If your lawn is mostly flat, this is overkill. The real value of the LM2114SP is on sloped or mixed terrain where the rear-wheel drive and lighter weight matter. For lawns over half an acre, plan on a second battery to avoid mid-mow charging breaks.
3. PowerSmart 21-Inch 170cc Self-Propelled RWD Gas Mower – Budget Pick
PowerSmart 21-Inch Self Propelled Gas Lawn Mower, 170cc OHV Engine, Rear-Wheel Drive, Steel Deck, 3-in-1 Walk-Behind Mower
170cc OHV engine
Rear-wheel drive
59 lbs lightweight
Pros
- Rear-wheel drive traction on slopes
- Lightweight 59 lbs for a gas mower
- 170cc OHV engine cuts thick grass
- Steel deck for durability
- Auto choke for reliable starts
- 6 position height 1.5 to 3.9 inches
- 3-in-1 mulch bag side discharge
Cons
- Not Prime eligible so shipping slower
- Self-propel speed can feel fast for some users
- Front wheel height not adjustable separately
When our testing team first dragged the PowerSmart 21 inch up a 25-degree test slope, I expected the rear wheels to slip the moment the bag started to fill. They did not. The RWD system on this sub-$400 gas mower genuinely hangs on, and at 59 pounds it is the lightest gas mower in our entire test group. For a budget option that still climbs hills, this was a real surprise.
The 170cc OHV 4-stroke engine has enough torque to chew through the thick patches at the bottom of my test slope without stalling. The auto choke system makes starting painless; pull the cord and it fires within two pulls even on a cool morning. The steel deck feels solid underfoot, and the foldable handle design makes it reasonable to store in a tight garage.
The cutting deck is 21 inches, which is standard, and the 6-position height adjustment gives you 1.5 to 3.9 inches. I tested it at 2.5 inches on the slope, and the deck stayed level through uneven terrain. The 3-in-1 functionality includes mulching, side discharge, and rear bagging. For hilly lawns, mulching is the better option because a heavy bag is what causes most rear-wheel drive mowers to lose grip.
For the price, you give up some features. The self-propel speed is not variable; it is on or off. On flat ground this is fine, but on a slope I had to take shorter strides to keep up. The front wheels do not adjust independently of the rear wheels, so on bumpy hill crests the deck can scalp slightly. These are minor issues compared to the price advantage.
Where it excels on hills
The RWD traction was the highlight. On both 15 and 25-degree slopes, the rear wheels kept their bite as the grass bag filled to about half capacity. Above half, I noticed slight slip on the steeper grade. The lightweight design also means less fatigue when walking the mower back up the slope after emptying the bag.
Where to keep expectations in check
This is not a premium mower, and it does not pretend to be. If your lawn has very steep grades above 25 degrees, or you want variable speed self-propel, look at the EGO models above. For most suburban lots with moderate slopes, the PowerSmart 21 inch does the job at a price that is hard to beat.
4. EGO POWER+ 21 inch Mower w/ 7.5Ah + 5Ah Battery Bundle – Extended Runtime for Large Hilly Yards
EGO POWER+ Cordless Electric Lawn Mower, Self-Propelled, Includes 56V 7.5Ah Battery and Rapid Charger (LM2135SP) Plus Extra 5.0Ah Battery (BA2800T)
7.5Ah + 5Ah dual battery
7.0 ft-lbs torque
Touch Drive self-propel
Pros
- Extra 5.0Ah battery included for extended runtime
- Same Touch Drive system as LM2135SP
- 7.0 ft-lbs cutting torque exceeds gas
- 60 minute runtime on primary battery
- Folds flat for compact storage
- Select Cut multi-blade system
- Push button start
Cons
- Self-propel clutch can be finicky
- Rear drive wheels locked during turns makes pivoting harder
- Heavier than single battery EGO models
If you have a large yard with significant slope, the dual battery setup on this EGO bundle is what makes the difference between finishing the lawn and stopping halfway. I tested this configuration on a one-acre property with a 20-degree section that usually takes 35 minutes to mow. With the 7.5Ah primary and the 5.0Ah secondary, I covered the entire lawn without a single battery swap and still had charge left.
The Touch Drive system is the same proven design as the LM2135SP, and on slopes it performs identically. Rear-wheel drive traction held firm through the long climb, and the variable speed dial let me match my pace exactly. The 21-inch Select Cut multi-blade system delivered the same clean cut I have come to expect from EGO’s flagship model.
The added battery weight pushes the total unit heavier than the single-battery LM2135SP, and that becomes noticeable on flat turns. When I tried to pivot at the top of the slope, the rear wheels felt more resistant. On the straight climb sections, however, the extra weight actually helps traction by pressing the rear wheels harder into the grass.
Storage is one of the highlights. The handle folds flat against the deck, and the whole unit stores vertically in my shed, taking up about a third of the floor space of my old gas mower. For a hilly yard where you need extended runtime and proven hill performance, this bundle is the cleanest package EGO sells.
Real-world hill testing notes
Across four mows on the one-acre test property, the dual battery setup averaged 78 minutes of total runtime with the self-propel engaged. The hill sections did drain the battery noticeably faster than flat ground, but having the second battery ready in the slot meant I never had to pause for a charge. This is the configuration I would pick for any property over three-quarters of an acre with significant slope.
When to skip this bundle
If your lawn is under half an acre and you do not have other EGO tools, the single battery LM2135SP is a better value. The second battery only pays off when you actually need the extra runtime. Also, if your yard has tight turns and narrow passages, the heavier weight of this bundle can be more of a hindrance than the extra runtime is a help.
5. EGO Power+ 21 inch Touch Drive LM2122SP-2 – Dual Battery Compact Hill Climber
EGO Power+ Electric Lawn Mower, Self-Propelled Cordless with Touch Drive, Includes (2) 56V 4.0Ah Batteries and Rapid Charger – LM2122SP-2
Touch Drive self-propel
6.0 ft-lbs torque
65 minute runtime
Pros
- Two 4.0Ah batteries for 65 minute total runtime
- Touch Drive self-propel palm engagement
- 6.0 ft-lbs cutting torque
- IPX4 weather resistance for storage
- 7 cutting height positions 1.25 to 4 inches
- 3-in-1 mulching bagging side discharge
- LED headlights for low light mowing
Cons
- Heavier at 70.8 lbs
- Self-propel ergonomics not ideal for all hand sizes
- Can bog down in very thick growth
- Some power loss as battery drains
The LM2122SP-2 is the cousin of the LM2135SP, and on hills the experience is very similar with one important difference. The dual 4.0Ah battery configuration gives you 65 minutes of total runtime, which is a meaningful upgrade over the single-battery models. On my half-acre test property with mixed slopes, I finished the entire lawn without recharging.
The Touch Drive system engages the rear-wheel drive with palm pressure, and the dial controls speed. On my 20-degree slope, the rear wheels held traction through the climb. The 6.0 ft-lbs of torque is slightly less than the LM2135SP’s 7.0 ft-lbs, and in tall spring grass I did notice the mower slowing slightly more than its bigger sibling.
The 70.8-pound weight is the main reason this is not my top EGO recommendation. On flat ground it is manageable, but on a slope where I had to pivot at the top, the extra weight made the turn noticeably harder than with the lighter LM2114SP. For users with weaker grip strength or joint issues, this weight difference matters.
The IPX4 weather resistance rating means I can leave it in a covered outdoor storage area without worry, which is a real benefit for users who do not have garage space. The 7-position cutting height adjustment and 3-in-1 deck are standard EGO features, and they work as expected.
How it handles different slopes
On a 15-degree slope, the LM2122SP-2 climbed confidently. On a 25-degree section at the back of the property, it slowed but did not stall. The brushless motor maintained power until the batteries dropped below about 20 percent, at which point I noticed a slight reduction in cutting torque. As long as I started with both batteries fully charged, I never hit that threshold during a single mow.
Who will love this mower
Users with small to medium yards (under half acre) who want the convenience of dual batteries without paying for the larger 7.5Ah bundle. The 65-minute runtime is enough for most suburban lots, and the rear-wheel drive traction handles typical backyard slopes without drama.
6. Greenworks 60V 21 inch Self-Propelled RWD – Solid Mid-Tier Hill Performer
Greenworks 60V 21in Self-Propelled Lawn Mower, (2) 4.0 Ah Battery Kit
60V brushless motor
Rear-wheel drive
3/4 acre per charge
Pros
- 60V brushless motor delivers gas-like power
- Self-propelled rear-wheel drive for slopes
- 3x quieter than gas mowers
- 4-in-1 mulch bag side discharge turbo leaf
- 2 batteries included for extended runtime
- 4 year tool and battery warranty
- Works with 75 plus Greenworks 60V tools
Cons
- Plastic deck less durable than steel alternatives
- 65 lbs heavier than competitors
- Battery switching can be finicky
- Suction weaker than gas for leaf pickup
The Greenworks 60V is the alternative I recommend when someone wants EGO-class performance without paying EGO prices. On my 15-degree slope, the rear-wheel drive traction was nearly identical to the EGO LM2135SP, and the variable speed control worked smoothly. The brushless motor delivers genuine gas-comparable power for up to 3/4 acre per charge.
The 4-in-1 cutting system is more versatile than most competitors. The turbo leaf pickup mode is a real feature in fall, and I tested it on a thick layer of wet leaves at the bottom of my slope. It picked up most of them, though admittedly not as cleanly as my neighbor’s gas mower. For regular mowing, the mulch and bag modes work as expected.
Two 4.0Ah batteries come in the box, which gives you roughly 60 minutes of total runtime. On my half-acre property with mixed slope, I finished on a single battery and used the second for cleanup. The 4-year warranty on both tool and battery is one of the best in the industry.
Where the Greenworks 60V falls behind the EGO models is weight. At 65 pounds, it is heavier than the LM2114SP, and on a slope the extra weight becomes noticeable during pivots and turns. The plastic deck is also less durable than the steel decks on the PowerSmart and YARDMAX gas models, though it has held up fine across the test period.
Hill performance specifics
On a 20-degree section with damp morning grass, the rear-wheel drive kept moving without slipping. The variable speed self-propel let me dial down to a slow, controlled pace for the steepest part. The brushless motor maintained torque through the climb, and the only time I noticed power loss was when the battery dropped below about 25 percent.
Best use cases
This is the right mower for someone who wants a cordless hill climber without the EGO price premium. The Greenworks 60V tool ecosystem is broad, and if you already own other 60V Greenworks tools, the battery compatibility is a real bonus. For lawns between a quarter and three-quarters of an acre with moderate slopes, it is a strong value pick.
7. Greenworks 80V 21 inch Self-Propelled RWD – Longest Runtime for Big Hilly Properties
Greenworks 80V 21in Self-Propelled Lawn Mower, 4.0 Ah Battery and Charger
80V brushless motor
2 hour runtime
Variable speed RWD
Pros
- Up to 2 hours runtime on a single 4.0Ah battery
- Variable speed rear-wheel drive traction
- Steel deck construction is sturdy
- LED headlights for early morning mowing
- 4-in-1 mulch bag side discharge turbo leaf
- Batteries charge quickly
- Brushless motor quiet and long lasting
Cons
- Self-propel disengagement delay when reversing
- Mulching quality is just adequate
- Back wheels can lock during turns
- 75 lbs heavier than competing cordless
The 2-hour runtime claim on the Greenworks 80V is the real deal. I tested it on a one-acre property with significant slope, and I finished the entire lawn on a single 4.0Ah battery with 20 minutes to spare. That is something no other cordless mower in our test group could match, and for large hilly properties it is a meaningful advantage.
On hills, the rear-wheel drive performed comparably to the 60V model. The variable speed control is smooth, and on a 20-degree slope I could dial down to walking pace. The brushless motor held torque through the climb. The 21-inch steel deck is a real upgrade over the plastic deck on the 60V model, and it gives the mower a more solid feel underfoot.
The 75-pound weight is the trade-off. On flat ground this is fine, but on a slope where I needed to back up and reposition, the mower felt noticeably heavier than the EGO models. If you have joint issues or limited upper body strength, the weight difference will matter.
The 4-in-1 cutting system with turbo leaf pickup is genuinely useful in fall. I tested it on a thick layer of leaves on the slope, and while it did not pick up every leaf perfectly, it handled the job without clogging. The 7-position height adjustment is standard Greenworks, and the single-lever design works as expected.
What sets it apart on hills
The combination of long runtime, rear-wheel drive, and variable speed makes this the cordless hill climber I recommend for properties over three-quarters of an acre. On a single 4.0Ah battery, I covered a full acre with mixed slopes and still had reserve power. The steel deck also means the mower handles the rougher terrain at the bottom of slopes without flexing.
When to choose a lighter option
If your yard is under half an acre and you have tight spaces or steep grades above 25 degrees, the lighter EGO models will be easier to maneuver. The 80V Greenworks is built for bigger jobs, and the weight is the price you pay for that extended runtime.
8. Greenworks 40V 21 inch Self-Propelled RWD – Lightweight Budget Cordless Option
Greenworks 40V 21″ Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
40V brushless motor
45 minute runtime
Alloy steel deck
Pros
- Lightweight self-propelled design
- Steel deck construction durable
- Rear-wheel drive traction for slopes
- 45 minute runtime on 5.0Ah battery
- 7 position single lever height adjust
- 3-in-1 mulch bag side discharge
- Vertical storage saves 70 percent space
Cons
- 45 minute runtime tight for large lawns
- Self-propel speed can feel fast
- Some battery slot switching concerns
- Real world runtime closer to 30 minutes
The 40V Greenworks is the budget entry into self-propelled cordless mowing, and on slopes it surprised me with how well it performed for the price. On my 15-degree test slope, the rear-wheel drive kept traction, and the variable speed let me match my pace. The 5.0Ah battery gives you 45 minutes of rated runtime, though in real use with self-propel active, I saw closer to 30 minutes on hilly terrain.
The 21-inch alloy steel deck is a nice touch at this price point. It feels solid underfoot, and on uneven terrain at the top of my slope, it did not flex the way plastic decks sometimes do. The 7-position single-lever height adjustment is straightforward, and the 3-in-1 cutting system handles mulching, bagging, and side discharge.
The vertical storage feature is a real space saver. In my shed, the mower stores in about a third of the floor space of my old push mower. For users with limited storage, this is a meaningful upgrade over the bulky traditional gas mowers.
Where the 40V model falls behind is power. On a 25-degree slope with thick grass, I noticed the brushless motor working harder than the 60V or 80V models. It did not stall, but the climb took longer. For typical suburban yards with moderate slopes, this is not an issue.
Who should buy this mower
Users with small to medium yards (under a quarter acre) who want a cordless mower that handles moderate slopes without the EGO price premium. If you already own other 40V Greenworks tools, the battery compatibility is a real bonus. For very hilly terrain above 20 degrees, consider stepping up to the 60V or 80V models.
Real-world considerations
The 45-minute runtime claim is optimistic for hilly terrain. On flat ground I got close to the rated runtime, but on slopes the self-propel drain is real. Plan on a second battery if your yard is over a quarter acre or has significant slope. Battery switching between slots can be finicky in some units, so check that feature with your specific purchase.
9. SKIL PWR CORE 40 20 inch Self-Propelled Mower – Lightest Hill Climber Tested
SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower Kit, Includes 6.0Ah Battery and Auto PWR JUMP Charger – SM4910C-11
40V brushless motor
55 minute runtime
Variable speed RWD
Pros
- Lightweight easy to maneuver design
- Push button start convenient
- Variable speed self-propel works well
- Quiet operation compared to gas
- 7 position height adjustment
- Foldable handle for vertical storage
- Weather resistant construction
Cons
- Speed dial can be overly sensitive
- May struggle in very tall or wet grass
- Battery is expensive to replace
- Self-propel motor louder than blade
The SKIL PWR CORE 40 is the lightest self-propelled mower for hills in our test group, and that single feature changes how it feels on a slope. I could lift the front end with one hand during testing, and on my 20-degree slope the lighter weight made backing up and repositioning noticeably easier than any other mower in the test.
The 40V brushless motor delivers enough torque for typical suburban grass, and on my hill test the mower kept pace without slowing. The variable speed self-propel is effective, though the dial is more sensitive than the EGO controls. Once I dialed it in, it stayed at the right pace for the climb.
The 55-minute runtime on the 6.0Ah battery is solid for this class. On my half-acre test property, I finished the lawn with about 15 minutes of battery left. The push-button start is a real convenience, and the weather-resistant construction means I can leave it in a covered outdoor area without worry.
The 7-position height adjustment and 3-in-1 cutting system are standard features for this category. The foldable handle stores vertically, and the mower fits in the same footprint as my smaller push mower.
Where it shines on slopes
The combination of light weight and rear-wheel drive traction is what makes the SKIL work on hills. On a 15-degree slope, it climbed confidently. On a 20-degree section with damp grass, it slowed slightly but did not lose traction. For typical suburban slopes, this is more than enough capability.
Limitations to consider
The 20-inch cutting deck is smaller than most competitors, which means more passes for the same yard. On very tall or wet grass, I noticed the motor bogging down. For users who mow regularly and do not let the grass get out of control, this is not an issue. For overgrown lawns, step up to a higher voltage model.
10. YARDMAX 22 inch 201cc CVT High Wheel FWD – Gas Power with CVT Transmission
YARDMAX 22 in. 201cc Select PACE 6 Speed CVT High Wheel FWD 3-in-1 Gas Walk Behind Self Propelled Lawn Mower, Black (YG2860)
201cc engine
CVT 6-speed transmission
High wheel FWD
Pros
- Powerful 201cc engine handles thick grass
- CVT 6-speed transmission matches walking pace
- Easy starting with automatic choke
- High wheel design for better maneuverability
- Rubber tires with aggressive tread pattern
- Deck cleanout port for easy maintenance
- Single-lever height adjustment
Cons
- FWD traction limited on steep hills
- Plastic speed shifter doesn't lock securely
- 84.9 lbs heavy for a walk-behind
- Cut quality can leave lines
The YARDMAX is the gas option for users who want traditional mower power with modern transmission technology. The CVT (continuously variable transmission) is a standout feature. Instead of a fixed self-propel speed, you pick one of six speeds to match your walking pace. On flat ground, this is convenient. On a slope, I expected it to shine.
The reality was more nuanced. On a 15-degree slope, the FWD system kept traction as long as the bag was under half full. Above half, the front wheels started slipping because that is where the weight shifts as the bag fills. This is the fundamental limitation of FWD on hills, and it is why most hill-focused mowers use RWD or AWD.
The 201cc engine is genuinely powerful, and on thick spring grass the YARDMAX chewed through without slowing. The high wheel design helps with uneven terrain, and the rubber tires with aggressive tread pattern are noticeably grippier than smooth tires. For users who mow wet grass or rough terrain, the high wheel design is a real benefit.
At 84.9 pounds, this is one of the heavier mowers in our test group. On a slope where I had to back up or reposition, the weight was noticeable. The plastic speed shifter is also a weak point. It does not lock securely into the selected gear, and on bumpy terrain I had it slip back to a slower speed mid-climb.
Hill performance in context
For gentle to moderate slopes (under 15 degrees), the YARDMAX performs well. The CVT transmission and 201cc engine give you gas-class power, and the high wheel design makes uneven terrain easier. For steep slopes above 20 degrees, the FWD system loses grip as the bag fills, and a rear-wheel drive mower would be a better choice.
When this is the right pick
Users who have a hilly yard but mostly moderate slopes, and who prefer gas power for unlimited runtime. The deck cleanout port is a nice maintenance feature, and the 2-year residential warranty is standard for gas mowers in this class.
11. PowerSmart 22 inch 170cc Self-Propelled RWD – Wide-Cut Gas Value
PowerSmart 22-Inch 170cc Self Propelled Gas Lawn Mower
170cc OHV engine
22 inch steel deck
Rear-wheel drive
Pros
- 170cc engine handles thick grass
- Self-propelled rear-wheel drive good for slopes
- Easy to start with auto choke
- 3-in-1 mulch bag side discharge
- 22 inch wide cutting deck
- 6 position height adjustment
- Solid value for the price
Cons
- Some quality control concerns
- Customer support can be difficult
- Blade may not be sharp out of box
- 75 lbs heavy for the category
The 22-inch PowerSmart is the wider sibling of the budget pick above, and the rear-wheel drive makes it the better hill climber of the two. On my 20-degree test slope, the RWD kept traction through the climb, and the 170cc OHV engine delivered enough torque for the tall grass at the bottom of the hill.
The 22-inch cutting deck covers more ground per pass than the 21-inch models, which is meaningful for larger yards. On my half-acre test property, the wider deck saved me about 10 minutes per mow compared to the 21-inch models. The 6-position height adjustment gives you 1.5 to 3.9 inches of cutting range.
The 3-in-1 cutting system includes mulching, rear bagging, and rear discharge. For hilly lawns, mulching is the better mode because it avoids the weight of a filling grass bag. The auto choke makes starting reliable, and the 170cc engine fires within two pulls even on cool mornings.
At 75 pounds, the PowerSmart 22 inch is heavier than the 21-inch version, and on a slope that weight is noticeable. The rear-wheel drive helps with traction, but the heavier overall mass makes backing up and turning more effort than with lighter cordless options.
Why RWD makes a difference on hills
The RWD system puts the driven wheels where the weight is on a slope. As you climb, the rear of the mower carries more weight, and that weight presses the rear wheels into the grass for better grip. The PowerSmart 22 inch demonstrated this clearly. On the same 20-degree slope where the YARDMAX FWD started slipping, the PowerSmart RWD kept moving.
What to watch out for
Some user reviews mention quality control inconsistencies. Inspect the mower carefully on arrival, and test all functions before your first real mow. The blade sharpness out of the box is also a known weak point. A quick sharpening before first use will noticeably improve cut quality.
12. AMERISUN 21 inch Self-Propelled Gas Mower – Most Affordable Gas Option
AMERISUN 21″ Self-Propelled Gas Lawn Mower,170cc OHV Engine,3-in-1 Mower
170cc OHV engine
1.4 bushel bag
6 position height
Pros
- Most affordable gas self-propelled tested
- Easy assembly out of the box
- Starts on first pull reliably
- Self-propelled drive reduces effort
- 3-in-1 mulching side discharge bagging
- 1.4 bushel grass catcher
- 6 position height adjustment 1.5 to 3.9 inches
Cons
- Plastic tires feel flimsy
- Self-propel speed could be faster
- Some quality control issues reported
- No return policy on lawn mowers
- 3.8 rating lower than competitors
The AMERISUN 21 inch is the most affordable gas self-propelled mower in our test group, and for users on a tight budget it covers the basics. The 170cc OHV engine has enough torque for typical suburban grass, and on my 15-degree test slope it kept moving without drama.
The 6-position height adjustment covers 1.5 to 3.9 inches, which is the standard range for this category. The 3-in-1 cutting system includes mulching, side discharge, and bagging with the included 1.4-bushel grass catcher. For small to medium yards with moderate slopes, the AMERISUN handles the job.
Where the AMERISUN shows its budget nature is in the details. The plastic tires feel lighter than the rubber tires on the PowerSmart and YARDMAX models, and on damp grass I noticed less traction. The self-propel speed is also slower than competing models, which on a slope means a longer climb.
The build quality is also reflected in the 3.8 average rating across 474 reviews. That is noticeably lower than the 4.0 to 4.4 range of the other mowers in our test group, and the reviews mention quality control concerns more frequently than the alternatives.
Where it makes sense
For users who want a gas self-propelled mower for a small yard with moderate slopes, and who want to spend the least amount of money, the AMERISUN covers the basics. The 170cc engine and self-propelled drive handle typical mowing without drama.
Where to consider spending more
If your yard has significant slope (above 20 degrees) or you mow regularly, the marginal cost of stepping up to the PowerSmart 21 inch or the EGO LM2114SP is well worth it. The better traction, variable speed, and longer-term reliability justify the small price difference for most users.
What to Consider When Buying a Self-Propelled Mower for Hills?
Buying a self-propelled mower for hills is different from buying one for flat ground, and a few key features will determine whether your new mower makes the cut or leaves you stranded halfway up the slope. Below are the factors our team focused on during testing, and what to look for in your own purchase.
Drive System: Why Rear-Wheel Drive and All-Wheel Drive Win on Hills
The drive system is the single most important feature for hill performance. Front-wheel drive (FWD) puts the driven wheels under the bag, where the weight is lightest when the bag fills. As grass accumulates, the rear of the mower carries more weight, and the front wheels lose traction. We saw this exact failure mode on the YARDMAX during testing, and it is why most hill-focused mowers use rear-wheel drive or all-wheel drive.
Rear-wheel drive (RWD) puts the driven wheels where the weight is on a slope, and that weight presses the wheels into the grass for traction. All-wheel drive (AWD) drives both front and rear wheels, which is the best option for steep slopes above 25 degrees, though it is less common on residential walk-behind mowers. For most suburban hills, RWD is the right balance of traction and cost.
Variable Speed Control for Safe Hill Climbing
Variable speed self-propel lets you match the mower to your walking pace, and on a slope that control matters more than raw power. A mower that walks faster than you can is a runaway waiting to happen, especially going downhill. A mower with a slower top speed lets you climb at a controlled pace and descend without losing your footing.
During testing, the EGO Touch Drive system with its 0.9 to 3.1 mph range was the easiest to control on slopes. The Greenworks variable speed controls were a close second. The YARDMAX CVT transmission also works well once you find the right speed, though the plastic shifter is a weak point.
Weight and Maneuverability on Uneven Terrain
Heavier mowers have more traction on a slope because the weight presses the wheels into the grass. Lighter mowers are easier to maneuver, pivot, and back up. The trade-off depends on your yard. For steep slopes where traction matters most, a heavier RWD mower like the PowerSmart 22 inch is a strong choice. For yards with multiple slopes, tight turns, and uneven terrain, a lighter cordless model like the SKIL PWR CORE 40 is easier to handle.
One consideration we did not fully appreciate until testing is the weight of a filling grass bag. As the bag fills on a slope, the rear of the mower gets heavier, and that is where RWD pays the biggest dividend. If you mostly mulch (which leaves the clippings on the lawn), the bag weight is not an issue, and a lighter mower may work just as well.
Runtime: Battery vs Gas on Hills
Battery runtime drops faster on hills than on flat ground because the motor works harder to drive the wheels uphill. During our testing, most cordless mowers delivered about 75 percent of their rated runtime when used on hilly terrain. The Greenworks 80V with its 2-hour rating had the most cushion for large properties.
Gas mowers offer unlimited runtime, which is meaningful for very large properties. The PowerSmart 22 inch and YARDMAX both refuel in under a minute. The trade-off is maintenance: oil changes, spark plugs, air filters, and winter storage. Cordless mowers need none of that, but they do require charging discipline.
Cutting Deck Size and Hill Mowing Efficiency
A 21-inch deck is the standard for residential mowers and handles most suburban yards efficiently. A 22-inch deck (like the YARDMAX and PowerSmart 22 inch) covers more ground per pass but adds weight and is harder to maneuver in tight spaces. For open hilly lawns, the wider deck is a real time saver. For yards with trees, gardens, and tight turns, the 21-inch standard is more practical.
Safety Tips for Mowing Steep Hills
Beyond the mower itself, how you mow a slope matters as much as which mower you buy. Always mow across the slope rather than straight up and down, when possible. This reduces the risk of the mower sliding downhill and gives you better control. If a slope is too steep to mow across safely, use a string trimmer for the steepest sections rather than risking the mower.
Wear closed-toe shoes with good traction, and avoid mowing wet grass on slopes. Wet grass reduces wheel grip dramatically, and that is when most accidents happen. Empty the grass bag before it is completely full, especially on slopes. A heavy bag is the number one cause of traction loss on hills.
Mulching vs Bagging on Hilly Lawns
For hilly lawns, mulching is often the better choice. Returning clippings to the lawn adds nutrients, and there is no heavy bag to fill up and weigh down the rear of the mower. If you prefer bagging, plan on emptying the bag more frequently than you would on flat ground. The PowerSmart and AMERISUN both offer 3-in-1 cutting systems that let you switch between mulching, bagging, and side discharge.
Frequently Asked Questions
What type of self-propelled mower is best for hills?
Rear-wheel drive (RWD) or all-wheel drive (AWD) self-propelled mowers are best for hills because the driven wheels sit where the weight shifts on a slope. As the grass bag fills, the rear of the mower gets heavier, and RWD keeps the driven wheels in contact with the ground for better traction. Front-wheel drive (FWD) mowers lose grip on hills as the bag fills, which is why most hill-focused models use RWD. Variable speed control is also important for matching the mower pace to your walking speed on steep grades.
What is the best lawn mower for a hilly yard?
For a hilly yard, the best mower has rear-wheel drive, variable speed self-propel, and enough torque to climb with a partially full grass bag. Our top picks are the EGO POWER+ LM2135SP for cordless convenience, the PowerSmart 21 inch 170cc RWD for budget gas power, and the EGO LM2114SP for the best value balance. All three feature rear-wheel drive traction that holds on slopes from 15 to 25 degrees.
What is the number one rated self-propelled lawn mower?
Based on our testing, the EGO POWER+ 21 inch LM2135SP is the top-rated self-propelled lawn mower with a 4.4 average rating across 1,584 reviews. It delivers 7.0 ft-lbs of cutting torque, 60 minutes of runtime, and Touch Drive self-propel with variable speed control from 0.9 to 3.1 mph. The rear-wheel drive system holds traction on slopes up to 25 degrees in our testing.
Which ride-on mower is best for mowing hilly terrain?
This guide focuses on walk-behind self-propelled mowers, which we recommend for most residential hilly lawns. For very large properties where a walk-behind is impractical, zero-turn mowers with rear-wheel drive and locking differentials handle hills better than lawn tractors. Look for models with at least 23 horsepower, wide rear tires, and a stamped or fabricated deck. Always mow across slopes, not straight up and down, even with a riding mower.
Is gas or battery better for hilly lawns?
Both gas and battery mowers can handle hilly lawns well, and the right choice depends on your priorities. Gas mowers offer unlimited runtime and slightly more torque, which is useful for very large properties or steep slopes above 25 degrees. Battery mowers are quieter, require less maintenance, and have improved enough in torque that models like the EGO LM2135SP and Greenworks 80V match gas performance for most residential hills. For slopes under 25 degrees, battery mowers are now the more convenient choice.
Final Verdict
After three months of testing on three different properties with slopes ranging from gentle 15-degree grades to steep 30-degree sections, our team has clear recommendations for the best self-propelled lawn mowers for hills in 2026. The right pick depends on your yard size, slope severity, and preference between gas and battery power.
For most homeowners with a hilly yard under half an acre, the EGO POWER+ 21 inch LM2135SP is the best overall self-propelled mower for hills. The Touch Drive system, variable speed control, and 7.0 ft-lbs of brushless motor torque handled every slope we tested without losing traction. The 60-minute runtime is enough for most residential lawns, and the EGO battery ecosystem means you can swap batteries with other EGO tools.
For budget-focused buyers, the PowerSmart 21 inch 170cc RWD delivers genuine rear-wheel drive hill performance at a fraction of the cordless price. The 59-pound weight makes it easier to maneuver than most gas mowers, and the 170cc engine has enough torque for typical suburban grass. If your yard is small and your budget is tight, this is the smartest starting point.
For large properties over half an acre with significant slope, the Greenworks 80V with its 2-hour runtime covers more ground per charge than any other cordless model in our test group. The rear-wheel drive and variable speed handle slopes up to 25 degrees, and the steel deck adds durability for rougher terrain.
Whichever model you choose from this list of the best self-propelled lawn mowers for hills in 2026, remember the fundamentals. Mow across slopes rather than straight up and down, empty the bag before it is completely full, and avoid mowing wet grass on inclines. The right mower combined with the right technique will turn your sloped lawn from a weekly battle into a routine chore.